50. He suggested that the meeting _____ put off.

　 A. not be 　　　　　　　　 B. should not　　　　　　　　 C. wouldn’t 　　　　 D. be not

49. It is strange that she 　　　 _____ so.

　 A. think　　　　　　　　　　 B. thinks 　　　　　　　　　　 C. will think　　　　　 D. thought

48. _____ your letter, I would have started off two days ago.

　 A. If I received 　　　　　　　　　　　　　　　　　　　　　 B. Should I receive　　　　

C. If I could have received　　　　　　　　　　　　　　 D. Had I received

47. I was really anxious about you. You _____ home without a word.

　 A. mustn’t leave　　　　　　　　　　　　　　　　　　　　　 B. shouldn’t have left　　

C. couldn’t have left　 　　　　　　　　　　　　　　　　 D. needn’t leave

46. --There were already five people in the car but they managed to take me as well.

　 --It _____ a comfortable journey.

　 A. can’t be　　　　　　　　　　　　　　　　　　　　　　　　　 B. shouldn’t be 　　　　　　

C. mustn’t have been　　　　　　　　　　　　　　　　　　 D. couldn’t have been

45. We _____ last night, but we went to the concert instead.

　 A. must have studied　　　　　　　　　　　　　　　　　　 B. might study　　　　　　　　　　

C. should have studied 　　　　　　　　　　　　　　　　 D. would study

44. If it _____ for the snow, we _____ the mountain yesterday.

　 A. were not; could have climbed　　　　　　　　　　 B. were not; could climb

　 C. had not been; could have climbed　　　　　　　 D. had not been; could climb

43. If my lawyer _____ here last Saturday, he _____ me from going.

　 A. had been; would have prevented　　　　　　　　 B. had been; would prevent

　 C. were; would prevent　　　　　　　　　　　　　　　　 D. were; would have prevented

42. --Where have you been?

　 --I got caught in traffic; _____ I could have been here soon.

　 A. otherwise 　　　　　　 B. however　　　　　　　　　 C. though 　　　　　　 D. anyway

41. _____the friendship between us last forever!

　 A. Could 　　　　　　　　 B. Will　　　　　　　　　　　　 C. May 　　　　　　　　 D. Wish